package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.ArrayList;
import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    @Select("select * from shopping_cart where user_id = #{userId}")
    List<ShoppingCart> getByUserId(Long userId);

    //查询当前登录人的菜品、套餐对应的购物车数据
    ShoppingCart getOne(ShoppingCart shoppingCart);

    //更新购物车元素数量
    @Update("update shopping_cart set number =#{number} where id=#{id}")
    void updateNumber(ShoppingCart cart);

    //保存购物车
    void insert(ShoppingCart shoppingCart);

    //清空购物车
    @Delete("delete from shopping_cart where user_id=#{userId} ")
    void clean(Long user_Id);
    @Delete("delete from shopping_cart where id = #{id}")
    void deleteById(Long id);

    /*批量保存*/
    void batchInsert(ArrayList<ShoppingCart> cartList);
}
